Trump is in true form in the 2005 letter to the New York Times, after a positive review of Mark Singer's Character Studies, which painted Trump in a negative light.

The negative press from Trump actually increased book sales, and Singer sent a tongue-in-cheek letter to Trump, with a royalty check enclosed no less, and Trump sent it back with some "harsh words" that we've all become accustomed to:

And yes, Trump cashed the check.

Trump went even further with this note to Vanity Fair in 2012, going straight to the editor after a piece by Juli Weiner that mocked Trump for his relentless tease of running for president, complete with annotations: